package com.ssj.dataSource;

import javax.sql.DataSource;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.*;
import java.util.LinkedList;
import java.util.Map;
import java.util.Properties;
import java.util.concurrent.Executor;
import java.util.logging.Logger;
//ssj edit
public class MyDataSource implements DataSource {
    private LinkedList<Connection> conns = new LinkedList<Connection>();

    public MyDataSource() {
        Properties properties = new Properties();
        FileInputStream fileInputStream = null;
        try {
            fileInputStream = new FileInputStream("D:\\idea-code\\four\\day1\\src\\jdbc.properties");
            properties.load(fileInputStream);
            System.out.println("扫描文件");
            System.out.println(properties);
            Class.forName(properties.getProperty("jdbc.driver"));
            System.out.println(properties.getProperty("jdbc.driver"));
            for (int i = 0; i < Integer.valueOf(properties.getProperty("jdbc.init")); i++) {
                Connection connection = DriverManager.getConnection(properties.getProperty("jdbc.url"), properties.getProperty("jdbc.username"), properties.getProperty("jdbc.password"));
                conns.add(connection);
            }
        } catch (FileNotFoundException e) {
            throw new RuntimeException(e);
        } catch (SQLException e) {
            throw new RuntimeException(e);
        } catch (IOException e) {
            throw new RuntimeException(e);
        } catch (ClassNotFoundException e) {
            throw new RuntimeException(e);
        }

    }

    @Override
    public Connection getConnection() throws SQLException {
        Connection connection = conns.removeFirst();
        return new MyConnection(connection);
    }

    class MyConnection implements Connection {
        Connection conn = null;

        public MyConnection(Connection connection) {
            this.conn = connection;
        }

        @Override
        public void close() throws SQLException {
            conns.add(conn);
        }

        @Override
        public Statement createStatement() throws SQLException {
            return conn.createStatement();
        }

        @Override
        public PreparedStatement prepareStatement(String sql) throws SQLException {
            return conn.prepareStatement(sql);
        }

        @Override
        public CallableStatement prepareCall(String sql) throws SQLException {
            return conn.prepareCall(sql);
        }

        @Override
        public String nativeSQL(String sql) throws SQLException {
            return conn.nativeSQL(sql);
        }

        @Override
        public void setAutoCommit(boolean autoCommit) throws SQLException {
            conn.setAutoCommit(autoCommit);
        }

        @Override
        public boolean getAutoCommit() throws SQLException {
            return conn.getAutoCommit();
        }

        @Override
        public void commit() throws SQLException {
            conn.commit();
        }

        @Override
        public void rollback() throws SQLException {
            conn.rollback();
        }


        @Override
        public boolean isClosed() throws SQLException {
            return conn.isClosed();
        }

        @Override
        public DatabaseMetaData getMetaData() throws SQLException {
            return conn.getMetaData();
        }

        @Override
        public void setReadOnly(boolean readOnly) throws SQLException {
            conn.setReadOnly(readOnly);
        }

        @Override
        public boolean isReadOnly() throws SQLException {
            return conn.isReadOnly();
        }

        @Override
        public void setCatalog(String catalog) throws SQLException {
            conn.setCatalog(catalog);
        }

        @Override
        public String getCatalog() throws SQLException {
            return conn.getCatalog();
        }

        @Override
        public void setTransactionIsolation(int level) throws SQLException {
            conn.setTransactionIsolation(level);
        }

        @Override
        public int getTransactionIsolation() throws SQLException {
            return conn.getTransactionIsolation();
        }

        @Override
        public SQLWarning getWarnings() throws SQLException {
            return conn.getWarnings();
        }

        @Override
        public void clearWarnings() throws SQLException {
            conn.clearWarnings();
        }

        @Override
        public Statement createStatement(int resultSetType, int resultSetConcurrency) throws SQLException {
            return conn.createStatement(resultSetType, resultSetConcurrency);
        }

        @Override
        public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency) throws SQLException {
            return conn.prepareStatement(sql, resultSetType, resultSetConcurrency);
        }

        @Override
        public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency) throws SQLException {
            return conn.prepareCall(sql, resultSetType, resultSetConcurrency);
        }

        @Override
        public Map<String, Class<?>> getTypeMap() throws SQLException {
            return conn.getTypeMap();
        }

        @Override
        public void setTypeMap(Map<String, Class<?>> map) throws SQLException {
            conn.setTypeMap(map);
        }

        @Override
        public void setHoldability(int holdability) throws SQLException {
conn.setHoldability(holdability);
        }

        @Override
        public int getHoldability() throws SQLException {
            return conn.getHoldability();
        }

        @Override
        public Savepoint setSavepoint() throws SQLException {
            return conn.setSavepoint();
        }

        @Override
        public Savepoint setSavepoint(String name) throws SQLException {
            return conn.setSavepoint(name);
        }

        @Override
        public void rollback(Savepoint savepoint) throws SQLException {
conn.rollback();
        }

        @Override
        public void releaseSavepoint(Savepoint savepoint) throws SQLException {
conn.releaseSavepoint(savepoint);
        }

        @Override
        public Statement createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException {
            return conn.createStatement(resultSetType,resultSetConcurrency,resultSetHoldability);
        }

        @Override
        public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException {
            return conn.prepareStatement(sql,resultSetType,resultSetConcurrency,resultSetHoldability);
        }

        @Override
        public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException {
            return conn.prepareCall(sql,resultSetType,resultSetConcurrency,resultSetHoldability);
        }

        @Override
        public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys) throws SQLException {
            return conn.prepareStatement(sql,autoGeneratedKeys);
        }

        @Override
        public PreparedStatement prepareStatement(String sql, int[] columnIndexes) throws SQLException {
            return conn.prepareStatement(sql,columnIndexes);
        }

        @Override
        public PreparedStatement prepareStatement(String sql, String[] columnNames) throws SQLException {
            return conn.prepareStatement(sql,columnNames);
        }

        @Override
        public Clob createClob() throws SQLException {
            return conn.createClob();
        }

        @Override
        public Blob createBlob() throws SQLException {
            return conn.createBlob();
        }

        @Override
        public NClob createNClob() throws SQLException {
            return conn.createNClob();
        }

        @Override
        public SQLXML createSQLXML() throws SQLException {
            return conn.createSQLXML();
        }

        @Override
        public boolean isValid(int timeout) throws SQLException {
            return conn.isValid(timeout);
        }

        @Override
        public void setClientInfo(String name, String value) throws SQLClientInfoException {
conn.setClientInfo(name,value);
        }

        @Override
        public void setClientInfo(Properties properties) throws SQLClientInfoException {
conn.setClientInfo(properties);
        }

        @Override
        public String getClientInfo(String name) throws SQLException {
            return conn.getClientInfo(name);
        }

        @Override
        public Properties getClientInfo() throws SQLException {
            return conn.getClientInfo();
        }

        @Override
        public Array createArrayOf(String typeName, Object[] elements) throws SQLException {
            return conn.createArrayOf(typeName,elements);
        }

        @Override
        public Struct createStruct(String typeName, Object[] attributes) throws SQLException {
            return conn.createStruct(typeName,attributes);
        }

        @Override
        public void setSchema(String schema) throws SQLException {
conn.setSchema(schema);
        }

        @Override
        public String getSchema() throws SQLException {
            return conn.getSchema();
        }

        @Override
        public void abort(Executor executor) throws SQLException {
conn.abort(executor);
        }

        @Override
        public void setNetworkTimeout(Executor executor, int milliseconds) throws SQLException {
conn.setNetworkTimeout(executor,milliseconds);
        }

        @Override
        public int getNetworkTimeout() throws SQLException {
            return conn.getNetworkTimeout();
        }

        @Override
        public <T> T unwrap(Class<T> iface) throws SQLException {
            return conn.unwrap(iface);
        }

        @Override
        public boolean isWrapperFor(Class<?> iface) throws SQLException {
            return conn.isWrapperFor(iface);
        }
    }

    @Override
    public Connection getConnection(String username, String password) throws SQLException {
        return null;
    }

    @Override
    public PrintWriter getLogWriter() throws SQLException {
        return null;
    }

    @Override
    public void setLogWriter(PrintWriter out) throws SQLException {

    }

    @Override
    public void setLoginTimeout(int seconds) throws SQLException {

    }

    @Override
    public int getLoginTimeout() throws SQLException {
        return 0;
    }

    @Override
    public Logger getParentLogger() throws SQLFeatureNotSupportedException {
        return null;
    }

    @Override
    public <T> T unwrap(Class<T> iface) throws SQLException {
        return null;
    }

    @Override
    public boolean isWrapperFor(Class<?> iface) throws SQLException {
        return false;
    }
}
